(Reuters, News.bg, Πρακτορείο Ειδήσεων Focus, Novinite, The Sofia Echo, Dnevnik.bg, Mediapool - 15/05/09, Παγκόσμια Τράπεζα, Novinite - 14/04/09)
(Reuters, News.bg, Focus News Agency, Novinite, The Sofia Echo, Dnevnik.bg, Mediapool - 15/05/09; World Bank, Novinite - 14/04/09)